Anti-friction device for car-axles



(No Model.) 7 2 Sheets-Sheet l. G. B. EMBRY & O. BRIGHAM. ANTI FRICTIONDEVIGE FOR GAR AXLES.

No. 419,428. Patented Jan. 14,1890.

j saw ngknn. D. C.

N PETERS. Photo-UH UNITED STATES PATENT OFFICE.

CHARLES B. EMERY, OF BOSTON, AND CHARLES BRIGHAM, OF WATERTOWVN,MASSACHUSETTS.

ANTI-FRICTION DEVICE FOR CAR-AXLES SPECIFICATION forming part of LettersPatent No. 419,428, dated January 14, 1890.

I Application filed June 10, 1889. Serial No. 313,770. (No model.) a

To all whom it may concern:

Be it known that we, CHARLES B. EMERY, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,and CHARLES BRIGHAM, a

citizen of the United States, residing at Watertown, in the countyofMiddlesex and State of Massachusetts, have jointly invented new anduseful Improvements in Anti-Friction Devices for Car-Axles, of which thefollowing, taken in connection with the accompanying drawings, is aspecification.

This invention relates to improvements on the patent granted February 9,1875, N 0.

I5 159,656, to Charles B. Emery and S. WV. Em-

cry, for an anti-friction device for car-axles; and it is carried out asfollows, reference being had to the accompanying drawings, where Figure1 represents a front elevation of the device, showing the front oil-boxin section. Fig. 2 represents a vertical section on the line X X, shownin Fig. 1. Fig. 3 represents a crosssection on the line Y Y, shown'inFig. 2; and Fig. 4 represents a section on the line Z Z,

shown in Fig. 3.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

In the drawings, a represents one of the sills of a steam-railroad-cartruck, to which is firmly secured the bearing bracket or jaws b b, inone piece with which is cast the hollow box B, to the underside of whichis secured the cover C by means of suitable fastening- 3 5 bolts, asshown. Said cover serves to inclose the anti-friction device, so as toexclude dirt and dust from the working parts.

c is a rubber or elastic packing interposed between the abutting edgesof the box B and 0 cover C, said packing having, preferably, its loweredge resting in a groove in the cover 0, as shown in Fig. 2.

D represents the flanged car-wheel, and D its axle, as usual. 5 Frepresents the rail for the wheel D.

W'ithin the hollow box B is journaled in hearings or boxes f and f theshaft F, to which the flanged anti-friction wheel Gis secured. The saidanti-friction wheel G is supported and rolls on the axle D in a mannersimilar to that shown and described in the above-mentioned patent andfor the same purpose.

The axle D is provided near its end with a beveled annular ring d,adapted to enter the groove 9 on the interior of the flange of theanti-friction wheel G, for the purpose of preventing alateral motion ofthe wheel G relative to the axle D, and thus holding said parts in theirproper relative positions.

h and h are oil and waste boxes, respectively, for the inner and outerends of the anti-friction wheel-shaft F, which boxes are preferably castin one piece with the dust cover 0 and provided with the respectivespring-pressed or hinged covers H and H, as shown.

I is a leather ring or washer surrounding the axle D at the back of thehollow box B, as shown in Fig. 2, which ring is held in place within agroove or recess in the rear part of said hollow box B, and serves forthe purpose of excluding dust and dirt from the interior of thesaid box,as well for preventing waste of the lubricant used on the axle. K is ashell, preferably made of brass or composition, which surrounds the axleD, as shown in Figs; 2, 3, and 4, said shell having an oil and wastereceptacle K in its upper end and having an opening K preferably in itslower end, as shown in Fig. 3. Chips or bars L L are held againstopposite ends-of the shell K by the influence of springs Z Z, havingtheir ends resting in recesses made in said chips or bars L L andrecesses made on the interior of the shell-chamber B, which forms a rearextension and part of the main box B, as shown in Figs. 2, 3, and 4.

The chamber B is closed at the top by means of the detachable coyer B,provided 0 with a suitable elastic packing B for the purpose ofexcluding dust and dirt at the place where the said cover is secured tosaid chamber.

M is a metal spring interposed between the 5 under side of the cover B.and top of shell K, for the purpose of holding the said shell K in itsproper position on the axle D.

The object of the side springs Z Z is for the purpose of preventingvibrations and shocks 10o to the car-axle D, espeeiallyon theapplication of the brakes, or when the ear is suddenly started orstopped.

In addition to the end springs Z Z, above mentioned, we locate, betweenthe chips L L and the inside of the chamber B, elastic rubber springs NN, covered with metal plates n a, as shown in Figs. 3 and 4, said platesbeing secured in a suitable manner to said rubber springs, the latterbeing preferably held in positions shown in Figs. 3 and 4; by means oftheir lower rightrangled ends or feet N N, inserted in correspondingrecesses in the bottom of the chamber B, as shown in Fi 3.

In case of asudden jar or shock to the carfor instance, when the brakesare applied quickly, or from other causes-and if one of the springs Zshould then be compressed sufficiently to allow the chip L to come incontact with its metal plate a any further motion of the chip in thesame direction will cause the rubber spring N to be compressed, thusstill further preventing vibrations and shock to the axle and itsconnections.

The invention is shown in the drawings as applicable to steam-cars, withthe jaws 1) secured to the sill a of a truck supported on yieldingsprings, as is common in devices of this kind; but the invention isequally ap plicable to horse-cars, electric cars, or similar vehicles,in which the bearings for the axles are arranged to yield againstsprings located -between such bearings and the sills or framework of thecar, or in any other desired manner, without departing from the essenceof our invention.

Having thus fully described the nature, construction, and operation ofour invention, we wish to secure by Letters Patent and claim- 1. Theaxle D, having the annular ring (1,

combined with the flanged anti-friction wheel G, journaled in bearings,as described, and having on its interior the groove g, adapted toreceive the said axle-ring, substantially as and for the purpose setforth.

2. The axle D and the flanged anti-friction wheel G, journaled inbearings, as described, combined with the inclosing-box B and the cover0, having front and rear oil and waste boxes h h, and covers H H,substantially as and for the purpose set forth.

3. The axle D and the flanged anti-friction Wheel G, journaled inbearings, as described, and the inclosing-box 13, combined with theshell K, journaled on the axle and adapted to yield vertically andlaterally relative to said inclosing-box, substantially as and for thepurpose set forth.

4. The axle D and the flanged anti-friction wheel G, journaled inbearings, as described, and the inclosing-box B, combined with theyielding shell K, the metal chips or bars LL, and springs ll,substantially as and for the purpose set forth.

5. The axle D and the flanged anti-friction wheel G, journaled inbearings, as described, andthe inclosing-box I5, combined with theyielding sh ell K, the metal chips or bars L L, with their springs Z Z,and auxiliary rubber springs N N, with their plates at a, substantiallyas and for the purpose set forth.

In testimony whereof we have signed our names to this specificatiominthe presence of two subscribing witnesses, on this 11th day of May, A.D. 1889.

CHARLES H. EMERY. CHARLES BRIGl-IAM.

\Vitnesses:

ALBAN ANDREN, J. HERBERT EMERY.

